OpenVPN GUI client for UDP/TCP
I know this is not the GUI method but openvpn couldn't be any more simple or elementary as far as the commandline goes and really does not need a GUI. The command to start an openvpn session is as follows:
sudo openvpn --config
and then drag and drop the ".ovpn" file into the terminal to complete the command so it should look something like this example:
sudo openvpn --config '/home/jglerner/Desktop/vpnbook-us1-tcp443.ovpn'
press enter, enter your password for sudo, enter your vpn username, then your vpn password and you're good to go.
Users can minimize the open terminal if they don't want to look at it while it's running. Plus, it might give your "non linux pals" a bit of commandline confidence when they see how easy something like this can be.
Example .ovpn file used in this example can be downloaded from here http://www.vpnbook.com/ if you want to check it out and see how it works. Just download the certificate bundle and extract the zip file. There are two TCP and two UDP servers to choose from. The username is "freevpnme" and the password is listed on the download page, however, the password changes day to day to prevent abuse and spam but the cert. files stay the same.
Adding an OpenVPN connection via the Network preferences with
network-manager-openvpn-gnome installed, defaults to using UDP instead of TCP. If you want to connect via TCP, it is under the Advanced settings you can get to by clicking that button on the VPN tab of the configuration GUI.
Here's how I did this in ubuntu 16.04.
I used Network Manager -- access this via right-click on the little "networking icon" in the system tray, e.g.:
I already had Network Manager, but I needed to install OpenVPN and two extensions for Network Manager:
sudo apt-get install openvpn sudo apt-get install network-manager-openvpn sudo apt-get install network-manager-openvpn-gnome
Even if you're not running Gnome, you can install the Gnome extension for OpenVPN -- it will run just fine inside Unity, for example, and it's needed for the following setup:
Right-click Network Manager in the System Tray, select Edit:
In the dropdown, select to import the vpn config:
.ovpn config file from your file system:
Once this is setup, right-click on Network Manager > VPN Connections and select the connection to connect. To disconnect, do the same: